In order for you to allow saved game support, and keep "bad" users from overwriting files, we need to provide an environment where certain saved files are allowed, while restricting all other access. Hence, a new user, with permission to only access their home directory.

Please note that this does not work under windows unless a lot of care is taken to insuring a single user does not have write access except in the directory for saved games. Also, if users choose the default file names, they will overwrite each others saved games. I tell users to use USERNAME.GAME.SAV.UID with the UID being something unguessable by other users if they want to find their game unchanged later.

• 1. DL/Install Fedora Core 5 Server Install.
• 2. DL/Install Synchronet For Linux. http://www.synchro.net/docs/sbbsunix.txt
• 3. DL/Install Frotz http://www.ifarchive.org/if-archive/infocom/interpreters/frotz/frotz-2.43-3.i386.rpm Or get the source and build it. (put a copy of the frotz executable in /bin/)
• 4. DL a Z-File for an Infocom Game, or copy one from the original media you own. Zork 1, 2, 3 You want the data file, that is the "Z" file we need for Frotz.
• 5. You should make a separate user for your BBS to run as. (not root, i use sbbs) Be sure your BBS operates normally as this new user.
• 6. You should add a user "infocom" with a normal home directory. (/home/infocom/)
• 7. Put your Z files into "infocom" user's home directory. (/home/infocom/zg/) Rename the .DAT file as a .z3 file.
  Make sure a user OTHER than infocom owns your Z files, and/or make the directory they are in readable by infocom only.
• 8. Add the following line(s) to your /etc/sudoers file:
  # Cmnd alias specification Cmnd_Alias FROTZ = /bin/frotz # Runas alias specification Runas_Alias INFO = infocom sbbs ALL = (INFO) NOPASSWD: FROTZ
  This allows "sbbs" (my bbs user) to execute sudo as user infocom and execute frotz.
• 9. Fire Up SCFG. 10 External Programs, 6 Online Programs (Doors), and Add an area called Infocom.
• 10. Enter your New "Infocom" area, and choose 4 Available Online Programs.
• 11. Enter the following information:
  [Zork I] 1: Name Zork I 2: Internal Code Z1 3: Start-up Directory /home/infocom 4: Command Line sudo -u infocom /bin/frotz ./zg/zork1.z3 5: Clean-up Command Line 6: Execution Cost None 7: Access Requirements 8: Execution Requirements 9: Multiple Concurrent Users Yes 10: Intercept Standard I/O Yes, No Echo 11: Native (32-bit) Executable Yes 12: Use Shell to Execute No 13: Modify User Data No 14: Execute on Event No 15: Pause After Execution No 16: BBS Drop File Type None 17: Place Drop File In Node Directory 18: Time Options...
• 12. Repeat Step 10-11 for each game to be added.
• 13. Test it. It works great for me!